Sales of Receivables and Servicing Rights - Servicing Rights and Residual Interests Economic Assumptions (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fixed-rate
Schedule of Servicing Assets at Amortized Value
Weighted- Average Life (in years)	6 years 7 months 6 days	7 years 7 months 6 days
Prepayment Speed (annual) (as a percent)	12.40%	9.20%
OAS (bps)	0.0596	0.0753
Adjustable-rate
Schedule of Servicing Assets at Amortized Value
Weighted- Average Life (in years)	3 years	2 years 9 months 18 days
Prepayment Speed (annual) (as a percent)	27.90%	29.00%
OAS (bps)	0.0774	0.0803